Method of finishing siccative coatings



atented Mar. 4, 1924. i

UNTED GEORGE J. NIKOLAS, O]? CHICAGO, ILLINOIS.

METHOD OF FINISHING SICCATIVE COATINGS.

No Drawing. a Application filed May 3, 1923. Serial No. 636,498.

To all whom it may concern: ferred the object may be immersed or dipped Be it known that I, GEORGE J. NIKOLAS,'-a briefly in a bath of thinner material. For citizen ofthe United States of America, and this purpose I use a nitro-cellulose solvent, or a resident of Chicago, county of Cook, and such a solvent mixed with a diluent. 4r 5 State of Illinois, have invented a new and The effect of the thinner is to soften the useful Improvement in, Methods of Finishsurface of the coatingwhich probably due to ing Siccative Coatings, of which the followsurface tension, then assumes a perfectly ing is a specification. smooth exterior, and upon drying and set- This invention relates to methods of finishtlng, requiring but a brief interval, pre- 10 ing siccative coatings, as lacquer enamels and sents the smooth high gloss finish which is the like, for instance, on metal, wood or other considered essential for most finishes of the structural material, especially where the character referred to, as for instance, on auspray-brush or air-brush method is used for tomobile bodies, and other objects requiring applying the coatings. Incident to methods a high grade coating finish. 15 now ,extensively used, the application of Although but one specific embodiment of coatings by a spray-brush results in a mi the process of this invention is herein denutely rough or undulatory surface commonscribed, it is to be understood that some of ly known as an orange-peel effect. In order the specific steps may be modified or omitted to remove this defect it is customary to rub without departing from the spirit of this indown not only the filler coat but also the vent-ion as defined by the following claims. intermediate coat or coats, as well as the I claim: finish coat of lacquer. This leaves a dull 1. The method of finishingasiccative coatfinish requiring another coat to give the deing which includes applying a thinner theresired gloss. This last coat also has the deto after the coating has dried. 25 feet, i. e., orange-peel appearance. 2. The method of removing orange-peel The main object of this invention is to effects from coatings which includes the apbring up a high finish'gloss such as usually plication and draining off of a thinner.

is obtained with varnish, and to accom- 3. The method of bringing up a gloss plish this without leaving a surface having finish on a coating after it has been rubbed 30 the orange-peel effect. down, which consists in applying briefly My method of accomplishing the above rethereto a nitro-cellulose solvent.

" sult, where the coatings have been applied 4;. The method of coating and finishing an by an air-brush, or where for any other reaobject which consists in applying a siccative son they have an orange-peel surface, is to coating thereto, then after the coating has 35 rub down the finish with some abrasive to dried, rubbing it down to remove the orangeremove the orange-peel effect; then I apply peel effect, and then applying briefly thereto a thinner to the coated object, which is othera thinner to bring up a gloss finish. wise finished, and I'let this drain off. The Signed at Chicago this 5th day of Febt-hinner, commonly known as a lacquer thinruary, 1923.

ner, may be either poured on the object to be treated, or it may be sprayed on, or if pre- GEORGE J. NIKOLAS. 

